It was an awkward day for Eri as she spent the entire day completely naked, as per Momo's orders. It was already embarrassing enough having to walk down the hallways that morning, allowing kids from other classes to see her as well, not just the ones from Class 1A, but also having to stand in the corner nude the entire day felt weird. At the same time, as she felt so many eyes on her, her body seemed to react the same way it had been recently: with arousal.

She knew they could all see it: could see how she started trembling and even leaking down her legs. She saw how Aizawa was unable to get anyone's attention the entire time he was teaching because they were watching as she fought the urge to masturbate every second she stood there in front of them. Her tiny nipples were peaked due to both the arousal and the chill room.

Everyone had a feeling it was an order from Momo since she was the last one to have Eri, but neither her nor Eri ever confirmed or denied it when they asked between classes. Eri even almost started masturbating a few times when it seemed everyone in the classroom was staring at her, but she still managed to resist.

Finally, after several agonizingly slow hours, it was done. Class was over, and everybody stood up. It looked like everyone was still looking at Eri, with some of the ones who hadn't yet taken her home giving her looks they never had before. She couldn't help but wonder if they were now seeing her in a new light now that she'd spent the entire day naked and aroused in front of them, almost masturbating on top of that.

Some even walked towards her, but before anyone else could reach her, someone moved faster than the others and stepped in front of her, his larger size leaving her cast in an intimidating shadow.

"You should come with me," Shouji said as he looked down at her, his eyes scanning over her nude body in a way that both embarrassed her and turned her on more.

"O-Okay," she said meekly as he reached down with one of his arms, where she took his hand. Everyone looked at the boy in shock and jealousy as he led her away. She looked back just before leaving to see everyone staring at her petite butt, and caught Momo winking at her.

This was her plan, wasn't it? Show off Eri in front of everyone to make them more willing to take her home? She had to admit it was a good plan, especially since it seemed to have worked like a charm. Everyone now had their eyes on her and seemingly wanted to take her home, with Shouji being the first to step up.

He even picked her up and carried her in his large arms, which, combined with her nudity, got them a lot of weird stared as they walked down the halls and finally out of the academy. He quickly breezed down the streets, though she wasn't sure why. She kept seeing people looking at the two of them in horror, one of them even calling the police, since apparently word hadn't yet spread.

Before long, they arrived at an apartment complex, and Shouji startled one of his neighbors as he took Eri right past her and into his home. His parents didn't seem to be home, which Eri had gotten used to at this point. He continued to his room, which Eri didn't bother even looking at, instead staring at the boy as he set her down on his bed.

"So…what do you want?" she asked, deciding to get straight to the point.

"I wanted to test something regarding my quirk on you. It's not exactly something I can ask just anyone, though, so I realized you'd be the perfect person to try it on since you don't have a choice," he explained, then frowned. "That sounded harsher than I meant it to, I'm sorry."

"What did you want to test exactly?" Eri asked in confusion, wondering if maybe for once, it wouldn't have to do with sex. Shouji stared at her for a while before he stepped away and held out his arms. Before Eri's eyes, two of their ends shifted from hands into…

Penises.

Her eyes widened as she watched two dicks form on the end of his limbs, to which the man seemed to blush a little as she stared at them in surprise.

"I…didn't know you could do that…"

"It's something I've…tested lately, though I haven't been able to discover if they…work," he said, clearly very shy about it. "That's what I meant about not being able to ask just anyone. You though…"

"I don't have a choice…" Eri said with a sigh, and Shouji nodded his head.

"It's not how I would put it, but yes. I realized after seeing you…ah…in that state all day," he said, and now it was Eri's turn to blush.

"R-Right…well, go ahead," she said as she laid back on the bed and spread her legs. Shouji's eyes immediately widened as his blush deepened, and he cleared his throat.

"You're uh…quite forward about it."

"I've already done it so many times that I'm used to it by now," Eri explained, and Shouji looked even more uncomfortable.

"I know I should be questioning the morality of this, but…I suppose that went out the window when I stared at your body all day…" He finally stepped forward and lowered one of the arms, to which she paused.

"Uh…why do you have two?" she asked, and he looked shy again.

"I wanted to try…both holes," he said quietly, and Eri blinked.

"At the same time?!" she cried, and he nodded. Her blush returned as was stunned.

"You'll probably want to get on all fours. It'll be easier that way," he said so matter-of-factly. Eri nodded and changed positions, hearing Shouji choke up a bit as she pointed her ass towards him. She braced herself, but she wasn't ready for the fingers that penetrated her in both ends, and she glanced back at him. "Ah, sorry, but I researched that it's easier for the woman…er…girl? Female…if you…finger it first."

"M-Mhm," she replied, and then gasped as he resumed his motion, one finger sliding in and out of her pussy, which was already wet from earlier, and her asshole, which he would definitely need to widen before putting something inside it. Thankfully it didn't seem like it was taking long before she felt herself becoming looser, quiet moans leaving her mouth as her ass was fingered. She didn't know if he had any actual idea what he was doing, but after only a couple minutes of fingering her, during which she could already feel her climax beginning to build, he pulled out and raised his arms, pressing both penises against her holes.

"Are you ready?" he asked, and she took a deep breath to brace herself before nodding. Shouji nodded back before pushing inside. Instantly, a gasp escaped Eri's lips as her entire body lurched. It was mostly from the penis entering her tight ass, especially as while it wasn't anything massive, it wasn't small either. She barely had time to recover before he began to shift. It wasn't quite the same as someone thrusting since the penises weren't attached to hips, but it was still a familiar feeling as they slid in and out of her, the one going into her pussy doing so much more easily thanks to how wet she was.

It was strange being penetrated in both holes at once. She felt…full. It was hard to describe, but she felt intense pressure alongside the pleasure coursing through her. She dripped onto the carpet as she felt the dicks pulse inside her. She laid her top half down onto the bed, her ass in the air as the penises slid in and out. She could hear Shouji moaning between her own sounds, so clearly he was feeling it as well, just as he'd wanted. Given how he'd been acting, she figured he wouldn't last long given that he seemed to have little experience, though it felt strange that someone of her age had more than someone of his.

Either way, despite the pressure and mild pain of her ass being stretched, she felt good. He wasn't too rough, and although they didn't really communicate, he seemed to be good at reading her, slowing down when he needed to and speeding up when she wanted more. The climax inside her swirled and built faster and faster as her moans likewise increased in volume. He was starting to slow down as well, yet kept up his intensity as his penises pulsed inside her with every passing second.

Eri, surprisingly, came first, though she supposed at the same time it wasn't actually all that surprising given she was being penetrated in two places at once. As she was in the midst of her climax, leaving her trembling and she dripped down onto the bed, Shouji also came. It was a strange sensation as he came out of both penises, though it was in turn less for each of them. She briefly wondered if he'd also cum from his real one, but decided it was too much work to think with her addled brain as she felt his cum filling her insides and exploding out of the sides.

Once it was all done, he pulled out and she flipped onto her back, feeling the semen leaking from her sex onto the bed as Shouji stumbled back, panting. His penises transformed back into hands, and he looked up at the ceiling.

"I suppose…that answers my question…" he said, then chuckled. "Thank you for being a guinea pig."

"It's fine. I enjoyed it," Eri said, feeling weird empty now, though her ass still felt somewhat tender as she shifted. "So…"

"You may stay with me for the rest of the night, if you wish. My parents are aware of the program, so it's not a problem if they see you, though I'd prefer you refrain from describing what we've done," he said, and Eri nodded in response. He bowed his head. "Once again, thank you."

"Don't mention it," she said softly as he walked to the bathroom, gently closing the door behind him. As she suddenly realized how exhausted she saw, she laid back against the pillow and closed her eyes.

She kept imagining herself naked in front of the class and wondered if she should do it again. It was strange that she wanted to do something she'd found so embarrassing, but perhaps it was simply that everyone else was rubbing off on her.

She eventually fell asleep absentmindedly rubbing at her still damp pussy.